The development and validation of a novel current-based induction motor (IM) condition monitoring (CM) system is described. The system utilizes only current and voltage signals and conducts fault detection using a combination of model-based and model-free (motor current signature analysis) fault detection methods. The residuals (or fault indicator values) generated by these methods are analyzed by a fuzzy logic diagnosis algorithm that provides a diagnosis with regard to the health of the induction motor. Specifically, this includes an indication of the health of the major induction motor subsystems, namely the stator windings, the rotor cage, the rolling element bearings, and the air-gap (eccentricity). The paper presents the overall system concept, the induction motor models, development of parameter estimation techniques, fault detection methods, and the fuzzy logic diagnosis algorithm and includes results from 110 different test cases involving four 7.5 kW four pole squirrel cage motors. The results show good performance for the four chosen faults and demonstrate the potential of the system to be used as an industrial condition monitoring tool.
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July 2014
Research-Article
A General Approach for Current-Based Condition Monitoring of Induction Motors
W. J. Bradley,
W. J. Bradley
Powell Switchgear & Instrumentation Ltd.
,Bradford BD4 7EH
, UK
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M. Ehsani
M. Ehsani
Department of Electrical and
Computer Engineering,
Computer Engineering,
Texas A&M University
,College Station, TX 77843
Search for other works by this author on:
W. J. Bradley
Powell Switchgear & Instrumentation Ltd.
,Bradford BD4 7EH
, UK
M. K. Ebrahimi
M. Ehsani
Department of Electrical and
Computer Engineering,
Computer Engineering,
Texas A&M University
,College Station, TX 77843
1Corresponding author.
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received April 26, 2013; final manuscript received February 9, 2014; published online April 28, 2014. Assoc. Editor: Ryozo Nagamune.
J. Dyn. Sys., Meas., Control. Jul 2014, 136(4): 041024 (12 pages)
Published Online: April 28, 2014
Article history
Received:
April 26, 2013
Revision Received:
February 9, 2014
Citation
Bradley, W. J., Ebrahimi, M. K., and Ehsani, M. (April 28, 2014). "A General Approach for Current-Based Condition Monitoring of Induction Motors." ASME. J. Dyn. Sys., Meas., Control. July 2014; 136(4): 041024. https://doi.org/10.1115/1.4026874
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